Xcode/clang: error: unable to execute command: posix_spawn failed - How to check for zombie processes on Mac OS X

find_zombies.sh

#!/bin/bash

# to check for zombie processes on Mac OS X

for pid in `ps -v -u james | awk '{print $1, $2}' | grep Z  | awk '{print $1}'`; 
do 
  ps -o command="" -p $pid >> ~/zombies.txt; 
done

# Detect if file exists
if [ ! `test -e  ~/zombies.txt` ]; then

  # this gives you the zombied commands
	cat ~/zombies.txt | sort | uniq

	# this gives you the number of zombied commands
	wc -l ~/zombies.txt

	rm ~/zombies.txt

else
    echo "No zombies found"

fi;

##########################
# other useful commands

# list max processes per userID
# sysctl kern.maxprocperuid

# list all user limits
# ulimit -a

# increase/set max processes per userID (if you want)
# sudo sysctl -w kern.maxprocperuid=1024

# then add this to your .bash_profile or .bashrc and restart a new shell
# ulimit -u 1024

# also change Finder’s limits
# sudo launchctl limit maxproc 1024

## Temporarily increasing the max user processes isn't a real fix

## The only real solution at the moment is to reboot your Mac